Fatal error: Uncaught Error: Interface "Illuminate\Contracts\Database\ConcurrencyErrorDetector" not found in D:\xampp\htdocs\trading_temp\vendor\laravel\framework\src\Illuminate\Database\ConcurrencyErrorDetector.php:10 Stack trace: #0 {main} thrown in D:\xampp\htdocs\trading_temp\vendor\laravel\framework\src\Illuminate\Database\ConcurrencyErrorDetector.php on line 10